contrib/gcc/reorg.c

1036   rtx pat = PATTERN (insn);
1040     pat = XVECEXP (pat, 0, 0);
1042   if (GET_CODE (pat) == RETURN)
1045   else if (GET_CODE (pat) != SET || SET_DEST (pat) != pc_rtx)
1048   src = SET_SRC (pat);
1109   rtx pat = PATTERN (seq);
1116   for (i = 1; i < XVECLEN (pat, 0); i++)
1120 	    && INSN_FROM_TARGET_P (XVECEXP (pat, 0, i)))
1122 				       XVECEXP (pat, 0, i), flags) :
1126 	    && ! INSN_FROM_TARGET_P (XVECEXP (pat, 0, i)))
1128 				      XVECEXP (pat, 0, i), flags) :
1130 	   eligible_for_delay (jump, i - 1, XVECEXP (pat, 0, i), flags)))
1133   return (i == XVECLEN (pat, 0));
1460       rtx pat = PATTERN (trial);
1467 	  && (GET_CODE (pat) == USE || GET_CODE (pat) == CLOBBER))
1473 	  && ! sets_cc0_p (pat)
1478 	  && (trial = try_split (pat, trial, 0)) != 0
1518       rtx pat = PATTERN (trial);
1519       rtx filled_insn = XVECEXP (pat, 0, 0);
1525       for (i = 1; i < XVECLEN (pat, 0); i++)
1527 	  rtx dtrial = XVECEXP (pat, 0, i);
1624   rtx trial, pat;
1646       pat = PATTERN (trial);
1647       if (GET_CODE (pat) == USE || GET_CODE (pat) == CLOBBER)
1650       if (GET_CODE (pat) == SEQUENCE)
1654 	  if (CALL_P (XVECEXP (pat, 0, 0)))
1662 	  if (INSN_SETS_ARE_DELAYED (XVECEXP (pat, 0, 0)))
1667 	  if (INSN_REFERENCES_ARE_DELAYED (XVECEXP (pat, 0, 0)))
1673 	  for (i = XVECLEN (pat, 0) - 1; i > 0; i--)
1674 	    if (GET_CODE (XVECEXP (pat, 0, i)) == GET_CODE (insn)
1675 		&& rtx_equal_p (PATTERN (XVECEXP (pat, 0, i)), ipat)
1676 		&& ! find_reg_note (XVECEXP (pat, 0, i), REG_UNUSED, NULL_RTX))
1684       else if (GET_CODE (trial) == GET_CODE (insn) && rtx_equal_p (pat, ipat)
1747       pat = PATTERN (trial);
1748       if (GET_CODE (pat) == USE || GET_CODE (pat) == CLOBBER)
1751       if (GET_CODE (pat) == SEQUENCE)
1755 	  if (CALL_P (XVECEXP (pat, 0, 0)))
1762 	  if (INSN_SETS_ARE_DELAYED (XVECEXP (pat, 0, 0)))
1767 	  if (INSN_REFERENCES_ARE_DELAYED (XVECEXP (pat, 0, 0)))
1773 	  for (i = XVECLEN (pat, 0) - 1; i > 0; i--)
1775 	      rtx candidate = XVECEXP (pat, 0, i);
1780 		  && ! (INSN_ANNULLED_BRANCH_P (XVECEXP (pat, 0, 0))
1790 	      if ((! INSN_ANNULLED_BRANCH_P (XVECEXP (pat, 0, 0))
1798 	  if (insn_sets_resource_p (XVECEXP (pat, 0, 0), &needed, 1))
1804 	  pat = PATTERN (trial);
1805 	  if (rtx_equal_p (pat, ipat))
2008   rtx insn, pat, trial, next_trial;
2136 	      pat = PATTERN (trial);
2139 	      if (GET_CODE (pat) == USE || GET_CODE (pat) == CLOBBER)
2149 		  && ! (reg_mentioned_p (cc0_rtx, pat) && ! sets_cc0_p (pat))
2153 		  trial = try_split (pat, trial, 1);
2237 	  rtx pat, trial_delay;
2266 		pat = PATTERN (trial);
2269 		if (GET_CODE (pat) == USE || GET_CODE (pat) == CLOBBER)
2274 		if (GET_CODE (pat) == SEQUENCE)
2275 		  trial_delay = XVECEXP (pat, 0, 0);
2285 		if (GET_CODE (pat) != SEQUENCE
2290 		    && ! (reg_mentioned_p (cc0_rtx, pat) && ! sets_cc0_p (pat))
2292 		    && ! (maybe_never && may_trap_or_fault_p (pat))
2293 		    && (trial = try_split (pat, trial, 0))
2301 		    if (reg_mentioned_p (cc0_rtx, pat))
2444       pat = PATTERN (trial);
2445       if (GET_CODE (pat) == USE || GET_CODE (pat) == CLOBBER)
2453 	  && ! reg_mentioned_p (cc0_rtx, pat)
2457 	  trial = try_split (pat, trial, 1);
2567       rtx pat, old_trial;
2576       pat = PATTERN (trial);
2577       if (GET_CODE (pat) == USE || GET_CODE (pat) == CLOBBER)
2586 	  && ! (reg_mentioned_p (cc0_rtx, pat)
2587 		&& (! own_thread || ! sets_cc0_p (pat)))
2626 		      && ! may_trap_or_fault_p (pat))))
2629 	      trial = try_split (pat, trial, 0);
2634 	      pat = PATTERN (trial);
2648 	      trial = try_split (pat, trial, 0);
2653 	      pat = PATTERN (trial);
2666 		  if (reg_mentioned_p (cc0_rtx, pat))
2763       if (NONJUMP_INSN_P (trial) && GET_CODE (pat) == SET
2764 	  && REG_P (SET_SRC (pat))
2765 	  && REG_P (SET_DEST (pat))
2766 	  && !reg_overlap_mentioned_p (SET_DEST (pat), SET_SRC (pat)))
2772 	      && ! reg_set_p (SET_DEST (pat), next)
2773 	      && ! reg_set_p (SET_SRC (pat), next)
2774 	      && reg_referenced_p (SET_DEST (pat), PATTERN (next))
2775 	      && ! modified_in_p (SET_DEST (pat), next))
2776 	    validate_replace_rtx (SET_DEST (pat), SET_SRC (pat), next);
2821       rtx pat = PATTERN (new_thread);
2826       pat = PATTERN (trial);
2829 	  || GET_CODE (pat) != SET
2834       dest = SET_DEST (pat), src = SET_SRC (pat);
2840 	  && ! side_effects_p (pat))
3066   rtx insn, next, pat;
3165       pat = PATTERN (insn);
3166       delay_insn = XVECEXP (pat, 0, 0);
3171       if (redundant_insn (XVECEXP (pat, 0, 1), delay_insn, 0))
3173 	  delete_from_delay_slot (XVECEXP (pat, 0, 1));
3203 	  for (i = 0; i < XVECLEN (pat, 0); i++)
3204 	    INSN_FROM_TARGET_P (XVECEXP (pat, 0, i)) = 0;
3208 	  gcc_assert (GET_CODE (pat) == SEQUENCE);
3210 	  for (i = 0; i < XVECLEN (pat, 0); i++)
3212 	      rtx this_insn = XVECEXP (pat, 0, i);
3302 	  && ! find_reg_note (XVECEXP (pat, 0, XVECLEN (pat, 0) - 1),
3321 	  for (i = 0; i < XVECLEN (pat, 0); i++)
3322 	    INSN_FROM_TARGET_P (XVECEXP (pat, 0, i)) = 0;
3326 	  gcc_assert (GET_CODE (pat) == SEQUENCE);
3328 	  for (i = 0; i < XVECLEN (pat, 0); i++)
3330 	      rtx this_insn = XVECEXP (pat, 0, i);
3344 	  && XVECLEN (pat, 0) == 2
3345 	  && rtx_equal_p (PATTERN (next), PATTERN (XVECEXP (pat, 0, 1))))
3405       if (INSN_FROM_TARGET_P (XVECEXP (pat, 0, 1))
3408       else if (! INSN_FROM_TARGET_P (XVECEXP (pat, 0, 1))
3428   rtx insn, jump_insn, pat;
3472       pat = PATTERN (insn);
3473       jump_insn = XVECEXP (pat, 0, 0);
3494       if (slots >= XVECLEN (pat, 0) - 1)
3496 	  for (i = 1; i < XVECLEN (pat, 0); i++)
3500 		    && INSN_FROM_TARGET_P (XVECEXP (pat, 0, i)))
3502 					       XVECEXP (pat, 0, i), flags) :
3506 		    && ! INSN_FROM_TARGET_P (XVECEXP (pat, 0, i)))
3508 					      XVECEXP (pat, 0, i), flags) :
3511 				       XVECEXP (pat, 0, i), flags)))
3517       if (i == XVECLEN (pat, 0))
3529 	  for (i = 1; i < XVECLEN (pat, 0); i++)
3530 	    prev = emit_insn_after (PATTERN (XVECEXP (pat, 0, i)), prev);
3760 	  rtx pat = PATTERN (insn);
3762 	  if (GET_CODE (pat) == SEQUENCE)
3763 	    insn = XVECEXP (pat, 0, 0);